fn main() {
    // for iteration 测试 break
    var list = [1, 1, 2, 3, 5, 8, 13, 21]
    var sum = 0
    for k, v in list {
        if sum > 20 {
            break
        }
        sum += v
    }
    println(sum)

    // for tradition 测试 continue
    var sum2 = 0
    for int i = 0; i < 100; i += 1 {
        if i % 2 == 0 {
            continue
        }

        sum2 += i
    }
    println(sum2)
}